Linux 工具命令

1. 批量杀死进程

ps -ef | grep handle_clean_call | grep -v grep | awk '{print $2}' | xargs kill -9

2. 查看网卡流量

network.sh

#!/bin/bash
 
ethn=$1
 
while true
do
 RX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}')
 TX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $10}')
 sleep 1
 RX_next=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}')
 TX_next=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $10}')
 
 RX=$((${RX_next}-${RX_pre}))
 TX=$((${TX_next}-${TX_pre}))
 
 if [[ $RX -lt 1024 ]];then
  RX="${RX}B/s"
  elif [[ $RX -gt 1048576 ]];then
   RX=$(echo $RX | awk '{print $1/1048576 "MB/s"}')
  else
   RX=$(echo $RX | awk '{print $1/1024 "KB/s"}')
 fi
 
 if [[ $TX -lt 1024 ]];then
  TX="${TX}B/s"
  elif [[ $TX -gt 1048576 ]];then
   TX=$(echo $TX | awk '{print $1/1048576 "MB/s"}')
  else
   TX=$(echo $TX | awk '{print $1/1024 "KB/s"}')
 fi
 
 #clear
 time=`date +"%Y-%m-%d %T"`
 echo -e "$time $ethn 下载流量:$RX\t上传流量:$TX"
done

bash network.sh 网卡名称

3. 使用 curl 测试网络

#!/bin/bash
cnt_pos=1
while true
do
   echo "--------------- the $cnt_pos requet ------------"
   echo "Start time: "`date +"%Y-%m-%d %H:%M:%S"`
   t0=`date +%s`
   req_url="https://www.baidu.com"
   echo "$req_url"
   
   curl -w "@./curl-cfg.txt" -X get -i --connect-timeout 200 -m 200  "$req_url"
   t1=`date +%s`
   let s_t2=t1-t0
   if [ $s_t2 -gt 3 ] 
   then
        break
   fi
   let cnt_pos=cnt_pos+1
   sleep 1s
done

curl-cfg.txt

\n
         remote_ip: %{remote_ip}\n
       remote_port: %{remote_port}\n
          local_ip: %{local_ip}\n
        local_port: %{local_port}\n
         http_code: %{http_code}\n
               dns: %{time_namelookup}s\n
          redirect: %{time_redirect}s\n
      time_connect: %{time_connect}s\n
   time_appconnect: %{time_appconnect}s\n
  time_pretransfer: %{time_pretransfer}s\n
time_starttransfer: %{time_starttransfer}s\n
     size_download: %{size_download}bytes\n
    speed_download: %{speed_download}B/s\n
                  ----------\n
        time_total: %{time_total}s\n
\n